Table 4 The heavy metal leaching concentration in separate samples of BA, SFA, and FA for both plants.

From: Risk control of heavy metal in waste incinerator ash by available solidification scenarios in cement production based on waste flow analysis

 

Cr

Cu

Ni

Pb

Zn

Cd

Hg

As

P1

 BA

480

3200

23

575

598

1

0.009

0.007

 SFA

776

2848

8

562

391

12

0.005

0.008

 FA

623

3482

90

2003

1821

424

0.02

0.057

P2

 BA

400

2763

12

326

558

0.1

0.012

0.005

 SFA

530

1256

11

999

264

32

0.008

0.006

 FA

610

3164

35

2785

2341

568

0.12

0.01

US EPA

 Standard

5

100

–

5

–

1

0.2

5

Chinese standard

15

100

5

5

100

1

 

5

Taiwan standard

5

15

–

5

–

1

0.025

5

Singapore standard

5

100

5

5

100

1

 

5

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